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Business Acquisitions - Early Discovery Breakout of Definite-Lived Intangible Assets Acquired (Details) - Argenta and BioFocus [Member] - USD ($) $ in Thousands	Apr. 01, 2015	Apr. 01, 2014
Definite-Lived Intangible Assets
Client relationships		$ 94,000
Backlog		5,900
Trademark and trade names		1,170
Leasehold interests		1,000
Other intangible assets		2,400
Total definite-lived intangible assets		$ 104,470
Client relationships
Definite-Lived Intangible Assets
Weighted average amortization life	18 years
Backlog
Definite-Lived Intangible Assets
Weighted average amortization life	1 year
Trademark and trade names
Definite-Lived Intangible Assets
Weighted average amortization life	3 years
Leasehold interests
Definite-Lived Intangible Assets
Weighted average amortization life	13 years
Other intangible assets
Definite-Lived Intangible Assets
Weighted average amortization life	19 years

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The amount of identifiable intangible assets recognized as of the acquisition date.

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